Fact: There is no immunity or protection against The Law of Scoreboards.
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|User Info||You Must Like Your Daily Sex; entered at 2020-05-18 15:51:12|
Registered: 2018-01-29 Iowa
PCR's are a tool|
But it will find and amplify fragments. As in if you have a lysed virus floating around, it can as a positive test.
And you need a certain load in the swab area to be positive. Oh, and the amplification process (while MUCH better than it used to be) is not perfect.
The "tested positive weeks after a negative test" doesn't surprise me.